baber/WOPTO huggingface dataset:
Patent DE-2650912-A1 (DE)
Title: Electrolytic regeneration of copper etching reagent - contg. chloride and cuprous ion, with control of copper concn. in reagent and current density
Inventor: HAAS RAINER
IPC: C23F1/46
Filed: 1976-11-06
Abstract: Regeneration of a Cl ion-contg. liquid etching reagent enriched with Cu+ in Cu etching, takes place by electrolysis between an anode and a cathode. The Cu ions are deposited as metallic Cu at the cathode. Excess Cu+ is oxidised to Cu2+ at the anode. The reagent to be regenerated contains 40-60(50) g/l Cu. Current density at the 2 electrodes is 0.5-0.65(0.6) amp/cm2. The quantity of reagent charged to depends on Cu+ ion concn. and on the electricity quantities supplied to anode and cathode. Pref. redox potential of the reagent is 400-600(410) mV. Quantity of reagent charged to the anode is pref. >=1 1/hrs at 410 mV, w.r.t. 1 amp. hr., and >=2 1/hr. at 460 mV. Etching rate of reagent is maintained. CP2 gas formation is prevented. Current yield is high.
Patent DE-2651929-A1 (DE)
Title: Transport pallet with adhesive surface - to prevent lightweight goods from sliding off
Inventor: GELZHAEUSER PETER
IPC: B65D19/44
Filed: 1976-11-13
Abstract: The flexible, surface-roughened, thermoplastic pallet has a full or partial adhesive coating. The adhesive coating may be a sprayed-on adhesive film or it may be composed of two-sided adhesive tape, the latter pref. in strips running in the direction in which the pallet is to be moved. The adhesive used is pref. based on e.g. polyisobutylene, polyvinylether, polychloroprene.
Patent DE-2654911-A1 (DE)
Title: Expanded plastics moulding, esp. abrasive disc prodn. - by treating dry grains with water and then reactive expandable plastics
Inventor: ORTNER GOTTFRIED
IPC: C08J9/02
Filed: 1976-12-03
Abstract: Prodn. of mouldings from expanded plastics (I) with granular inserts (II), esp. (unsupported) abrasive discs, is carried out with (I) which reacts with water. (II) is dried and then treated with a definite amt. of water and treated with expandable (I), which reacts with water to form a cellular material with a number of cells starting from the surface of (II). The dimensions and pore structure are very regular and the abrasive properties are improved, since the (II) surface is cleaner than usual. (I) pref. is a polyisocyanate or prepolymer for urethane foam. A primer can be added to promote adhesion between (I) and (II). In an example, 1200 g. (II), pref. treated with 60 g. primer, were dried, impregnated with 36 g. water contg. 5 g. bicarbonate, mixed with 600 g. polyisocyanate or prepolymer for urethane foam and cast, giving a stiff abrasive disc.
Patent DE-2656754-A1 (DE)
Title: Readily held and manipulated household scissors - have encircling thumb grip on one arm at right angles to plane of blades
IPC: B26B13/20
Filed: 1976-12-15
Abstract: The household scissors have improved finger grips to facilitate use. The two arms (A, B) of the scissors are swivably connected by a coupling screw (1) and have finger grips (4, 5) at one end. One grip (5) lies in the same plane as its blade (B), while the other grip (4) lies at right angles to its blade longitudinal direction. This second grip (4) has an eyelet (8) through which the thumb passes and rests against a concave support base (9) and a curved front wall (10). The eyelet is angled to the longitudinal axis of the scissors by approx. 15 deg.
Patent DE-2701748-A1 (DE)
Title: Solar heat collector mounted in roof - with size and mountings to suit those of tiles
Inventor: KLUMPP THOMAS DIPL ING
IPC: F24J2/04
Filed: 1977-01-18
Abstract: Solar heat collector for mounting in a tiled roof has size and mountings shaped to suit that of the tiles. A number of such collectors can be connected together to form a unit. The design allows the builder to lay the collectors like the tiles and at the same time, and since they are flush with the roof no connections through the roof itself are necessary.
Patent DE-2706114-A1 (DE)
Title: Foodstuff packing system in elastic sheet - subjects food to gas pressure above atmospheric in pressurisation chamber before sealing
Inventor: SCHEEL HORST
IPC: B65B31/02
Filed: 1977-02-14
Abstract: The system packs foodstuffs in elastic sheet, the max. amount of air being extracted before sealing. Before the final sealing, the package is subjected in a pressure chamber to gas pressure above atmospheric, and is sealed while so pressurised. Gas pressure used can be between 2 and 5 bar, and the package can be mechanically compressed before pressurisation. An opening (3) can be formed in the top of the package before either operation, closed by sealing sheet material before pressure is released. The pressure chamber (5) can be shaped to fit the package (1, 2) and also contain a mating punch (9) moved against it. An adjustable air supply (11) discharges into the chamber.
Patent DE-2711456-A1 (DE)
Title: Anticancer cis-platinum complexes and salts - with nitrogen-contg. polymers and oligomers, e.g. poly-phosphazene derivs.
Inventor: ALLCOCK HARRY REX
IPC: C08G79/025
Filed: 1977-03-16
Abstract: New cis-complexes or cis-salts consist of a planar quadratic platinum cpd. and a nitrogen-contg. oligomer or polymer. Pref. complexes or salts are those in which the platinum cpd. is ahaloplatinate (esp. chloroplatinate) and the polymer or oligomer is a polyphosphazene of formula (I), (II) or (III) (in which n is the degree of polymerisation and R is alkyl, alkoxy, aryloxy or halogen): The materials are anticancer agents with fewer toxic side effects (e.g. less kidney damage) than the parent Pt (II) cpds. Complexing with the N-contg. oligomer or polymer reduces toxicity without affecting anticancer activity. Specific complexes include cis-dichloro octakis(methylamino)-cyclotetraphosphazene-N,N" platinum (II).
Patent DE-2716609-A1 (DE)
Inventor: DORIGUZZI RINO
IPC: G02F1/1335
Filed: 1977-04-15
Abstract: In order to produce a display which is equally suitable for operating by reflection or transmission, the display is provided with a transparent reflector (9). This transparent reflector (9) is produced by coating the rear electrode (3) and the rear row plate (4). The mixture used in this case consists of a binder (28) and aluminium pigments from 2 to 12  mu m long, the weight ratio of aluminium pigments to binder (28) being 50:1 to 20:1. The liquid crystal display produced using the method according to the invention is conceived mainly for applications in the timepiece sector and generally for measuring instruments, but is suitable wherever there is a need for a handy and flat display for daytime and night-time operation. <IMAGE>
Patent DE-2717035-A1 (DE)
Title: Automatic transport mechanism for separate items - has independently travelling drive units automatically coupling to, and uncoupling from, pallets
Inventor: ROESSNER WILLI DIPL ING
IPC: B23Q7/14
Filed: 1977-04-18
Abstract: The automatic transport mechanism conveys items, partic. workpieces on pallets, between machining stations and/or stores. Independently travelling drive units (2) automatically couple to, and uncouple from, the pallets (1), and can be driven by conventional or linear motors. In the latter case the reaction rails (4) can also act as supports and guides for the drive units. The tracks for drive units and pallets can be at different levels, and there can be two tracks alongside each other for the former, each accommodating a number of them. Alternatively, both drive units and workpiece supports of the hanging type can be used.
Patent DE-2717235-A1 (DE)
Title: Tennis racket handle - has end capping of imitation leather grain polyurethane foam
Inventor: SCHAPER HERBERT DR
IPC: A63B49/08
Filed: 1977-04-19
Abstract: Tennis racket handle is made of polyurethane foam, in form of a relatively elongated cap slipped of a stiff handle body. The cap is 1-15mm thick, has Shore-A hardness 50-88, is soft and elastic. Its surface may have an imitation leather grain.
Patent DE-2717654-A1 (DE)
Title: Tion storage protection control system - combines protect key stack with access key register and active access key
Inventor: BIRNEY RICHARD EUGENE
IPC: G06F12/14
Filed: 1977-04-21
Abstract: The storage protection control system combines a storage protect key stack with an access key register (AKR) and active access key (AAK) select circuits. Storage key entries in the stack correspond to the physical blocks in the main memory, to provide storage protection for different storage access types within address sub-ranges in the main memory associated with respective access keys. The sub-ranges are blocks of addresses within the full range of addresses of the physical memory. The protect key operation applies to physical addresses, and it obtains system addressing compatibility with an address translation operation using the same access keys as address keys with program logical addresses.
Patent DE-2718132-A1 (DE)
Title: Metal detector display device - has array of LEDs which light up to indicate depth and profile of buried metal
Inventor: REINERS HERMANN
IPC: G01V3/15
Filed: 1977-04-23
Abstract: A metal detector has an array of l.e.d. as indicator devices to show the presence of metallic objects buried below the surface layer in brickwork or masonry. The sensitivity of successive diodes is adjusted so that the number illuminated provides an indication of the depth of the metal object below the surface. In a typical arrangement, a metal tube (12) and a U-section channel (14) are buried below the surface (16) of a wall (10). A metal detector having an array of diodes is made to traverse the surface and the number of diodes which light up shows how deep the adjacent metal is buried. The profile is indicated by the pattern assumed by the operating l.e.d.s.
Patent DE-2719808-A1 (DE)
Title: Passive electro-optical indicator - has opaque inorganic particles distributed in photoconductor to produce scattering effect
Inventor: LOEFFEL GERHARD
IPC: G02F1/1335
Filed: 1977-04-28
Abstract: Opaque inorganic particles which combine to produce a scattering effect are distributed in the material of the photoconductor. These particles can consist of titanium dioxide or they can be of zinc sulphide to produce a phosphorescent effect superimposed on the light scattering. An additional disperser can be positioned between photoconductor and indicator cell. The particles can also consist of reflecting tinsels which are aligned in parallel in a direction guaranteeing good light distribution. The mixture of plastic for the photoconductor and the particles is heated until the melting point of the plastic is exceeded.
Patent DE-2721426-A1 (DE)
Title: Proximity switch with inductive or capacitive operation - has terminals carried by end wall of tubular housing and covered by screw cap
Inventor: HANESCH WILLI
IPC: H01H1/58
Filed: 1977-05-12
Abstract: The switch, which may operate e.g. inductively or capacitively, has a tubular main part (1) which at the end remote frome the senor region has a flat end portion (6) which carries at least two terminals (7) or contact pins. The end portion (6) has a central opening for current leads, and has an external screw thread on to which a tubular cap is screwed with an interposed sealing ring (33). The outer diameter of the cap is substantially the same as that of the main part (1) of the housing. The switch provides a simple construction in which the terminals are readily accessible and which does not require fixing screws for the end cap.
Patent DE-2728835-A1 (DE)
Title: Oil slick retaining barrier - with aprons on inflated tubes forming fluid tight screen
Inventor: RINGLER BERNHARD
IPC: E02B15/04
Filed: 1977-06-27
Abstract: A floating barrier to capture an oil slick on surface waters consists of a circular belt around the source of the oil leakage. The belt comprises a great number of hose lengths which can be inflated, each with an apron, kept taut by weights, which is joined to the adjacent aprons to from a fluid-tight screen. This barrier can be quickly applied in case of emergencies around a leaking oil tanker or offshore oil well. No oil can escape from the barrier even in rough seas and the oil can be recovered by pumping from inside the barrier.
Patent DE-2733631-A1 (DE)
Title: Multistage centrifugal pump - has connections between blades and volute spaces to provide axially centering forces
Inventor: KRAEMER ROLAND DR RER NAT
IPC: F04D29/04
Filed: 1977-07-26
Abstract: The pump has one or more impellers (8, 8a) on a shaft (7) driven directly by an electric motor (3). Each impeller has radial blades (10) between front and back plates. The front and back plates have thickened projections (20) through which there are axial holes (18) connecting the blade passages (16) with the spaces (11, 11a) between the front and back plates and the casing. These admit discharge pressure into the spaces in front of and behind the impeller and thus provide an axial equalising force to maintain the axial position of the impeller. The outlets (19) from the connecting passages are close to the sides of the casing so that they form throttle orifices which adjust the pressures in the spaces (11, 11a) to keep the impeller balanced axially.
Patent DE-2737831-A1 (DE)
Title: Remote control sun blind for rear window of vehicle - has blind levers linked to self-blocking servo motor with arms inclined by control bars
Inventor: STOERRLE SIEGFRIED
IPC: B60J1/20
Filed: 1977-08-22
Abstract: The rear window of the vehicle is covered by a series of louvres (30) each held between two adjustable arms (3). The arms are fitted to vertical guides (1) and are set at different inclinations by control bars (2). For remote control the bars are linked to an electric servo motor (6). The servo motor has a self-locking gearing to hold the blind setting securely. The driver is able to adjust the blind setting while driving.
Patent DE-2741987-A1 (DE)
Title: Lanthanide oxide-oxysulphide or vanadate phosphor recovery - comprises destroying coloured pigment followed by glass phase extn. of the mixt. which also contains sulphide phosphor
Inventor: BOLZ BRUNO
IPC: C09K11/01
Filed: 1977-09-17
Abstract: Recovery of the phosphor from a suspension contg. impurities and also sulphide phosphor(s) is effected by (a) destroying the coloured pigment by a wet chemical method and (b) subjecting the mixt. filtered off to glass phase extn. Glass phase extn. is carried out by calcining with a glass former, filtering and treatment with a soln., which dissolves the glass. The process allows the recovery of costly lanthanide phosphors from suspension used in colour TV tube prodn. which also contain light-sensitive binders, wetting agents etc.
Patent DE-2749124-A1 (DE)
Title: Perforated or notched plate stack aligning machine - has mandrels whose bases are movable obliquely to vertical to produce peripheral component of vibration
Inventor: KRAMER WILLI
IPC: H02K15/02
Filed: 1977-11-03
Abstract: The machine is for aligning stacks of sheet metal stampings with holes or notches used for armatures of electric machines. The aligning machine has its effective part (16) fitted with several aligning mandrels (18). The mandrels are on the same radii as the holes or notches of the stampings. The bases (20) the mandrels (18) are movable in a guide assembly with an axis positioned obliquely in such a way that during the vibration a peripheral component is obtained. The axes of the mandrels are positioned in a tangential plane in relation to the centering axis of the stack.
Patent DE-2750441-A1 (DE)
Title: Contactless fuel flow gauge for vehicles - has reciprocating piston switching over electromagnetic valves when it approaches proximity switches
Inventor: JORDAN WOLFGANG DIPL ING
IPC: G01F9/00
Filed: 1977-11-11
Abstract: The fuel gauge comprises a four-way magnetic valve (5) which is interposed between the fuel pump and the engine of the vehicle. In a central chamber joining the four orifices of the magnetic valves is a piston (1) which can be reciprocated between pairs of valve orifices (X) (Y). Diagonal pairs (A, D) of valves are open when the other pair is closed and vice versa. When the piston is displaced in one direction by fuel flow, it triggers one or other of two proximity detectors (2a, b). This has the effect of changing over the function of the respective pair of valves. The switching frequency of the valves is proportional to the flow volume of fuel. The device is contact-less and only very small losses occur due to piston friction.
Patent DE-2756421-A1 (DE)
Title: Floor transporter with lifting fork and cabin - has seat folded into rear wall and pivoted steering column
IPC: B66F9/06
Filed: 1977-12-17
Abstract: The floor transporter, especially transverse fork lift truck has horizontally extended lifting arrangement. The driving cabin (5) has seat (11, 12) which projects in its frame outside the driving cabin. This seat is flattened and the frame is retracted to the vertical rear wall of the cabin. The flattened seat forms integral part of this rear wall. The steering column is also pivoted to ensure convenient operation in either position of the seat.
Patent DE-2758638-A1 (DE)
Title: Solenoid valve for IC engine radiator fan control - has temp. sensors in channel supplying correction signal to valve solenoid
Inventor: HOERNIG HORST ALBERT
IPC: G05D7/06
Filed: 1977-12-29
Abstract: The solenoid valve has closing seat controlling flow cross section in relation to an electrical magnitude. The closing seat is relatively simply influenced in relation to the temperature of the fluid. Close to the flow channel (6) is arranged a temperature sensor (10) and a correction element (11) for automatic correction of electrical magnitude in relation to the temperature measured by the sensor (10). A number of such temperature sensors can be provided and correction circuit (11) is supplied with a mean value of the measured temperatures.
Patent DE-2803647-A1 (DE)
Title: Heel holding device for safety ski binding - includes sole holder with closure pedal held by spring tension in operating position
Inventor: BRUNNER AUGUSTIN
IPC: A63C9/08
Filed: 1978-01-27
Abstract: The closure pedal is swivelled around an axis located behind the heel transverse to the ski's length and rigidly fixed to the ski. The sole holding down device is held by spring tension in it's operating position. The spring after overcoming the opening resistance by a release force applied to the sole holder swivels the latter into an open position by releasing the tension. Both ends of the spring (18) are connected to a roller element the axes of which lie parallel to each other and transverse to the length of the spring. The sole holder is fitted with a swivel link which acts on it and the part fixed to the ski (2) has a guide surface (10, 11) for each roller element (16, 17) which lie opposite to each other.
Patent DE-2809066-A1 (DE)
Title: Rotor controlled carburettor for IC engine - has guide ensuring accurate alignment of fuel metering needle and orifice
Inventor: PHILLIPS OLIVER V
IPC: F02M9/133
Filed: 1978-03-02
Abstract: The carburettor for an i.c. engine has a housing with a rotor controlling the air inlet and fuel flow. The fuel inlet is adjusted automatically relative to the air inlet to ensure accurate mixture composition. The rotor (22) movements are controlled to ensure accurate metering. The metering needle (40, 42) is fixed axially in the top part of the housing. The metering orifice (34) in the rotor is always correctly aligned with the tapering end of metering needle. The rotor is guided by a sleeve in the housing.
Patent DE-2811727-A1 (DE)
Title: Piezoelectric transducer with stacked active layers - has uneven number of layers, with middle one formed by several separate partial layers
Inventor: ANGERMAIER HUGO
IPC: B06B1/06
Filed: 1978-03-17
Abstract: This transducer piezoelectric strips are stacked vertically and firmly connected together. Each strip is coated on either side with a conductive film, forming the electrode. The strips are available in an uneven number, and the innermost strip is formed by several separate partial strips (3, 4). All strips are galvanically separated. Preferably the transducer construction is symmetrical about its longitudinal axis. The galvanic separation may be attained by insulating intermediate layer (13, 14). The polarisation direction (15, 16) is the same for the inner partial strips.
Patent DE-2811885-A1 (DE)
Title: Purifying para-phenylene di:amine contg. phenyl-aniline cpds. - by extn. with water in countercurrent double solvent fractional extn. (NL 26.9.78)
Inventor: BUDDE FREDERIKUS JOHANNES
IPC: C07C209/00
Filed: 1978-03-18
Abstract: Purification of p-phenylene diamine, (I), contaminated with phenyl-anilines, (II), takes place by counter-current double solvent fractional extn. comprising simultaneous extn. with 2 immiscible liqs. One liq., acting as solvent for (I), is water. The other liq. is a water-immiscible organic solvent for (II), inert w.r.t. (I), and having b.pt. =200 degrees C. The purified (I) is recovered from extn. water. The solvent for (II) may be a hydrocarbon, chlorinated hydrocarbon or an alcohol, partic. an alkyl-substd. benzene. The extn. takes place at 35-90 degrees C. (I) is pref. mixed with water before feeding to extn. zone. (I) are starting materials in the prepn. of fibre-forming aromatic polyamides, derived esp. from (I) with terephthalic acid. Extn. takes place continuously. The extn. liqs. may be recovered by distn. of the extd. materials and recycled.
Patent DE-2812858-A1 (DE)
Title: Strong acid and alkali resistant glass-ceramic materials - contg. oxide(s) of silicon aluminium, magnesium and titanium
Inventor: VOGEL WERNER PROF DIPL CHEM DR
IPC: C03C10/00
Filed: 1978-03-23
Abstract: Glass-ceramic material having high mechanical strength and chemical resistance to acids and alkalis consists of (in wt.%) SiO2 45-70, Al2O3 10-35, and MgO 8-25, with addition of 1-7 wt.% of TiO2 which acts as a crystal nucleating agent. Main crystal phases produced by a thermal treatment of the above material are t-quartz, enstatite and spinel. The prod. is used in chemical appts. and also in building constructions. The crystallisation is promoted by TiO2, exp. when reducing agents are added so that Ti3+ ions are formed. The t-quartz crystals have very high thermal dilation (up to 237 x 10-7 degrees C-1); this results in the creation of very high compressive stresses in the material so that the bonding strength is increased about 10 times compared with similar glass compsns.
Patent DE-2818711-A1 (DE)
Title: Selectively strengthened latch needle - has shaft with structured cross=section to absorb forces and reduce breakage
Inventor: SANDERS NORMAN THOMAS
IPC: D04B35/04
Filed: 1978-04-28
Abstract: Shaft section has a variable transversal cross section in at least the section (d) between the butt and the latch. The design reduces needle breakages as the vulnerable zones are strengthened to resist the operating forces. The leading needle section (d) has a reduced thickness over part of the height of the shaft section. There is a transversal cross section zone of the leading shaft section which is less than the neighbouring second section between it and the butt. The appearance of the leading section (d) is asymmetrical to a central plane running parallel to the needle side surface. The reduced thickness starts from an edge surface of the shaft, to give a decreasing line forwards along the needle, away from the butt towards the latch.
Patent DE-2823715-A1 (DE)
Title: 4-Amino-2-di:chloro-acetamido-5-tri:methoxy-benzyl-pyrimidine - useful as antibacterial and sulphonamide potentiator
Inventor: SCHARWAECHTER PETER DIPL CHEM
IPC: C07D239/49
Filed: 1978-05-31
Abstract: Pyrimidine deriv. of formula (I) is new. (I) is prepd. by reacting trimethoprim with a dichloroacetic acid deriv. at 20-150 degrees C, opt. in presence of solvent and acid acceptor. (I) is an antimicrobial and also potentiates the activity of sulphonamides. It is formulated conventionally for treating e.g. throat, nose, ear, respiratory, digestive or urinary tract infections. It is more active in vivo that trimethoprim e.g. 2.7 times more active against Streptococcus agalactiae in mice.